Do not use STATIC IP addresses for the DVRs. Just use Automatic Obtain IP addressing. Or, if you want, static IP addresses ON the DVRs, set them up ON the devices. DO NOT set IP address Reservations for the same IP addresses on the router. You can't do it with Reserved and Static at same time.
Doesn't work like that. Either set Reserved IP addresses ON the router for the DVRs and set them to Automatic or Set Static on the DVRs and NO Reservations ON the router.
Best Option IMO is set automatic with DVRs and IP address reservations on router. Set DAP for STATIC out side of router pool. I have DISH JOEYS, one connected to a wireless bridge as well. They are all set for automatic. The bridge is the only device with a STATIC IP address out side of the default IP address pool on the router. Mines set for 192.168.0.11.
Link
DHCP